This study aims to investigate the effect of the application of the 7E Learning Cycle Model to the learning outcomes of the Basic Science Concepts of SD 2. This research is a quasi experimental study with a Randomized pretest-posttest Control Group Design. The population of this study was all students of PGSD semester 2 STKIP ADZKIA Padang in the 2018/2019 school year. Samples were taken at random so one class was chosen as the experimental class and one class as the control class. The experimental class uses the Learning Cycle 7 E model while the control class uses the conventional model. The data collection technique is in the form of a learning outcome test (cognitive). The analysis of the research results uses the t test at a significance level of 5%. Based on the t test conducted, it was found that there were differences in student learning outcomes using learning with the learning model Cycle7E with conventional learning. Learning with Learning Cycle 7 E model gives an effect of 72% (moderate) to the improvement of student learning outcomes in the Basic Science Concept Course.

The background of this research is that the lecture design is not optimal so that students can think critically in understanding social studies material assisted by audio-visual media. The design of this research is Quasi-Experimental with a Non-Equivalent Control Group Design. The population is the second-semester students of the 2020/2021 academic year. The sampling technique used a saturated sample, Class II C as the experimental class and II D as the control class. Test the hypothesis by t-test and the data obtained by the value of tcount = 1,729 with a difficulty level of 5% with the test criteria if tcount> ttable then H1 is accepted and H0 is rejected. The experimental class test results averaged 74.5 and the control class averaged 65. The standard deviation of the control class (S=19.9) was greater than the standard deviation of the experimental class (S=14,4). The value of t-test is tcount = 1,729 and ttable = 1,686. The results of the study prove that the use of the Problem Based Learning model with the aid of Audio Visual media has an effect on students' critical thinking skills in learning the basic concepts of social studies at Adzkia University.

Based on the results of the preliminary analysis, it was found that the LKPD circulating in schools had not been able to direct students to study independently. This study aims to develop LKPD using the TTW model. The type of research used is the type of research and development (R & D), which uses a 4-D model. This model consists of 4 stages of development, namely definition, design, development, and dissemination. This research is only up to the stage of development that is to development. Data collection instruments in this study were used in the form of curriculum analysis sheets, student analysis, LKPD validation sheets (for linguists, material, and design experts). Based on the results of the LKPD validation using the TTW model, it is declared very valid. The level of validity of the design aspect is 90% with a very valid category, the level of validity of the material aspect is 91% with a very valid category, and the level of validity of the language aspect is 80% with a valid category, this shows that the LKPD product using the TTW model is at the category is very valid so that it can be used in integrated thematic learning.

This research is motivated by the importance of developing learning materials that can improve students' reading skill. Based on the above, developed learning materials oriented learning model of cooperative type CIRC. The purpose of developing this instructional material is to produce a valid, practical, and effective reading material. Type of research is research development . The development model is a 4-D model consisting of definitions, design, development, and disseminate. The result of validity test was valid with average value 3.35. The result of observation of the implementation of RPP states that the teaching material is practical with an average value of 90.90. In the effectiveness test stage, the average result obtained 92.33 and as many as 19 students from 20 people total reach Minimum Criteria completeness (KKM). Based on these results, it can be concluded that the reading material oriented cooperative learning model type CIRC in class IV Primary School that has been produced can be declared valid, practical, and effectiveKeywords: Development of Learning Materials, Reading, CIRC

Penelitian ini dilatarbelakangi oleh belum tersedianya bahan ajar yang memuat tahapan membaca, yakni prabaca, saatbaca,dan pascabaca dan belum terlihat teknik membaca dalam hati yang benar. Tujuan penelitian ini adalah: (1) menganalisis kebutuhan siswa berkaitan dengan bahan ajar membaca dalam hati. (2) Mengembangkan bahan ajar membaca dalam hati pada pembelajaran tematik terpadu dengan strategi OK5R di Kelas IV SD. (3) Menguji validitas bahan ajar yang dihasilkan. Jenis penelitian ini adalah penelitian pengembangan dengan model pengembangan Plomp yang terdiri dari tiga tahap, yaitu: (1) preliminary research, (2) prototyping phase, dan (3) assesment stage. Pada penelitian ini peneliti meminta bantuan 3 orang validator yaitu validator untuk materi, validator untuk Kebahasaan dan validator untuk design, dari validasi yang dilakukan didapatkan uji validitas 92% dengan kriteria sangat valid, Berdasarkan hasil tersebut dapat disimpulkan bahwa Pengembangan bahan ajar membaca dalam hati pada pembelajaran tematik terpadu dengan strategi OK5R di Kelas IV Sekolah Dasar telah valid untuk digunakan.